Writing Expressions
The sum of a number x and 5.
x+5
if x=3, evaluate x+5
3+5=8
What is the only mammal capable of true flight?
The only mammal capable of true flight is the bat.
Find the area of a rectangle with a length of 5 cm and a width of 3 cm
Area=5×3=15cm2
If it is 3:00 PM in Sydney (AEST), what time is it in Perth (AWST)
3:00PM−2hours=1:00PM in Perth
Three times a number n, decreased by 4
3n-4
If n=4, evaluate 3n−4
3(4)−4=12−4=8
Which planet in our solar system rotates on its side, making its axis almost parallel to the plane of its orbit?
The planet that rotates on its side is Uranus.
Find the area of a triangle with a base of 8 cm and a height of 4 cm.
Area=1/2×8×4=16cm2
If it is 8:00 AM in New York (EST), what time is it in London (GMT)
8:00AM+5hours=1:00PM in London
Twice the sum of a number y and 7
2(y+7)
If 𝑦=2, evaluate 2(𝑦+7)
2(2+7)=2(9)=18
What is the name of the world’s largest living organism, which covers over 3.5 square miles?
The world’s largest living organism is the Armillaria ostoyae fungus (also known as the "Humongous Fungus") in Oregon, USA.
Find the area of a circle with a radius of 7 cm.
Area=3.14×72=3.14×49=153.86cm2
A meeting is scheduled at 9:00 AM in Tokyo (JST). What time will it be in Paris (CET),
9:00AM−8hours=1:00AM in Paris
The product of 4 and a number m, subtracted from the square of that number
m2-4m
If 𝑚=5, evaluate 𝑚2−4𝑚
52−4(5)=25−20=5
In which country can you find a lake that turns pink due to the high salinity and presence of algae, known as Lake Hillier?
The country where you can find Lake Hillier is Australia.
Find the volume of a cube with a side length of 4 cm
Volume=43=4×4×4=64cm3
A flight leaves Los Angeles (PST) at 11:00 AM and arrives in Berlin (CET) 11 hours later. What is the local time in Berlin when the flight arrives.
10:00PM+9hours=7:00AM the next day in Berlin
Half the difference between a number z and 10, added to three times the square of the number
(z−10)+3z2/2
If z=−2, evaluate 1/2(z−10)+3z2
1/2(−2−10)+3(−2)2=1/2 (−12)+3(4)=−6+12=6
What peculiar phenomenon occurred during the Tanganyika Epidemic in 1962.
The peculiar phenomenon that occurred during the Tanganyika Laughter Epidemic was an outbreak of contagious laughter that lasted for months, beginning in a Tanzanian school and spreading to neighboring areas
Find the volume of a cylinder with a radius of 5 cm and a height of 10 cm
Volume=3.14×52×10=3.14×25×10=785cm3
A virtual conference starts at 2:00 PM in Dubai (GST). If a participant in Mumbai (IST) needs to join, what time should they log in
2:00PM+1.5hours=3:30PM in Mumbai